DC Insulation Monitor for EV Charger

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Acrel is one of the best supplier for me. They are so easy to communicate and very friendly. They even give an online tour of their factory. Looking forward for more business together in the future.

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Cloud Platform for Power IoT is a synchronous integrated solution from energy meter installation to web interactive interface that can see the benefits of features with the first click mouse. Very convenient and fast. I will be with this product for a long time.

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Vietnam

Highlight

What’s the Highlight of Acrel AIM Series DC EV Charger Insulation Monitor?

Voltage

200-1000V DC
between the positive and negative terminals
between the positive and negative terminals to the ground

Insulation Resistance

20 kΩ~10MΩ
between the positive and negative terminals to the ground
Response Time: adjustable from 3 ~ 60s

SOE

Alarm occurrence time
Fault type
20 SOE

Communication

RS485
MODBUS-RTU

Application

What’s the Application of Acrel AIM Series DC EV Charger Insulation Monitor?

Parameter

What’s the Parameter of Acrel AIM Series DC EV Charger Insulation Monitor?

Power supply		9~36VDC
Power consumption		≤6W
System voltage		200~1000VDC
Alarm	Over voltage	110% System voltage
	Under voltage	90% System voltage
Insulation monitor	Resistance range	20 kΩ~10MΩ
	Alarm range	20kΩ~10MΩ, 2 relay settable
Internal DC impedance		< 1MΩ
Output		2 relay output, N/C or N/O settable
Communication		RS485 Modbus-RTU protocol
Fault record		20 records fault
Installation		Din rail
Environment	Working Environment	-15~+55℃
	Storage Environment	-20~+70℃
	Relative humidity	< 95%
	Elevation	< 2000m

Function

What’s the Function of Acrel AIM Series DC EV Charger Insulation Monitor?

Real-time measurement and display of the voltage between the positive and negative terminals in the DC system, also voltage between the positive and negative terminals to the ground, the measuring voltage range is 200V~1000V.
Monitor the voltage fluctuation of the system in real time, and send alarm signal in time when it is over voltage or under voltage.
Measure the insulation resistance of the positive and negative terminals to ground real time in the DC system. When the resistance is lower than the set alarm value, the alarm signal will be sent.
The insulation monitoring response time is adjustable from 3 to 60s.
There are 2 adjustable relay output to set insulation resistance alarm value, optional N/C or N/O.
128*32 LCD display, LED alarm indication.
Event record function, which can record the time and fault type while alarm occurs, it is convenient for the maintenance operator to analyze the operating status of the system in time.
RS485 Modbus-RTU protocol, it can realize data exchange of the system.
Standard 35mm din rail installation

Wiring

How to wire the Acrel AIM Series DC EV Charger Insulation Monitor?

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